16x Prompt

What is 16x Prompt?

16x Prompt is a desktop application for AI-assisted coding on existing codebases. You write task instructions, pick the source files that matter, and the app assembles one structured prompt with formatting instructions added and a token counter showing how close you are to the model limit. You can paste the result into ChatGPT, Claude or DeepSeek, or send it through your own API key to providers such as OpenAI, Anthropic, Google Gemini, OpenRouter, Azure OpenAI and Ollama. A code edit feature applies model output to your files with visual diffs and automatic backups, and side-by-side comparison lets you check two models on the same task. Saved task instructions, custom instructions and workspaces spanning several repositories keep repeated work tidy. Prompt building happens locally on your machine. A free version allows 10 prompts per day, and a lifetime license costs $48 for one person or $68 for a team.

Use cases

• Compose prompts from source files
• Send prompts to LLM APIs
• Compare outputs from two models
• Apply AI code edits with diffs
• Save reusable task instructions
• Manage multi-repository workspaces

Who it's for

• Software developers
• Engineering teams
• Consultants and agencies

Why use 16x Prompt

• One-time lifetime pricing avoids a monthly subscription for a prompt tool.
• Selecting files and instructions in one place removes manual copy and paste into chat windows.
• You can use your existing ChatGPT Plus or Claude Pro by copying the prompt instead of paying for API calls.
• Prompt building runs locally and no data is stored on the vendor's servers.
• Visual diffs and backups make it safer to apply model-written code changes.

16x Prompt features

• Prompt assembly from instructions, source files and formatting rules
• Token limit counter for the chosen model
• Copy final prompt or send via bring-your-own-key API
• Providers include OpenAI, Anthropic, Gemini, DeepSeek, OpenRouter, Ollama
• Code edit with visual diffs and reversible backups
• Side-by-side comparison of LLM responses
• Saved task instructions and custom instructions
• Workspaces covering one or several repositories
• Light and dark mode
• Works with local models through OpenAI-compatible endpoints

16x Prompt integrations

• OpenAI
• Anthropic
• Google Gemini
• DeepSeek
• OpenRouter
• Ollama
• Azure OpenAI
• ChatGPT
• Claude

How to get started with 16x Prompt

1. Download the desktop app and open a workspace pointing at your repository.
2. Write the task instruction and select the source files the model needs.
3. Check the token counter and adjust formatting or custom instructions.
4. Copy the final prompt into your chat tool, or send it through an API key you entered.
5. Review the response, compare models if needed, and apply code edits with diffs.

16x Prompt limitations

• Free version is limited to 10 prompts per day
• No API keys are included; you need your own OpenAI, Anthropic or other provider key
• No refunds are offered on lifetime licenses
• Individual licenses activate on up to 3 devices and team licenses on up to 10

16x Prompt pricing

Yes, 16x Prompt has a free plan. Paid plans start at $48 one-time, according to the official pricing page on 24 Oct 2026.

16x Prompt plans

• Free Version

  Free

  • Source code management
  • Formatting instructions
  • Copy final prompt
  • Anthropic and OpenAI API
  • Limited to 10 prompts per day

• Life-time License (Individual)

  $48.00 USD

  one-time

  • Everything in Free
  • Unlimited usage
  • Activate on 3 devices
  • Free updates

• Life-time License (Team)

  $68.00 USD

  one-time

  • Everything in Individual
  • Invoice for company purchase
  • Activate on 10 devices
  • Priority support

Plans as listed on the official pricing page on 24 Oct 2026. Prices can change and may vary by country or exclude tax. Check the official pricing page.

16x Prompt alternatives

The main 16x Prompt alternatives listed on Debuly are Repomix, Cursor, Aider, Continue, Cline and GitHub Copilot. The table compares pricing and platforms; order is A–Z.

1. Ai

   Aider

   Open-source AI pair programming tool that runs in your terminal and edits code in your local git repository using the LLM you choose.

   CodingDeveloper platforms
   Open sourceVisit Aider (official site)
2. 

   Cline

   Open-source AI coding agent for VS Code, JetBrains, the terminal and desktop that edits files and runs commands with your approval.

   CodingDeveloper platformsAutomation and agents
   Open sourceVisit Cline (official site)
3. 

   Continue

   Open-source AI coding assistant for VS Code and JetBrains with chat, agent, edit and autocomplete modes, now part of Cursor.

   CodingDeveloper platforms
   Open sourceVisit Continue (official site)
4. 

   Cursor

   AI code editor and coding agent with cloud agents, Bugbot code review and multi-provider models, sold with Grok and X plans.

   CodingAutomation and agentsDeveloper platforms
   FreemiumVisit Cursor (official site)
5. 

   GitHub Copilot

   GitHub's AI coding assistant for code completion, chat and agents in VS Code, JetBrains, Visual Studio, the CLI and GitHub.com.

   CodingAutomation and agents
   FreemiumVisit GitHub Copilot (official site)
6. 

   Repomix

   Open-source tool that packs a whole code repository into one AI-friendly file with token counts and secret checks.

   Developer platformsCoding
   Open sourceVisit Repomix (official site)

16x Prompt FAQ

Sources & verification

Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.

Image credits

• Logo: from prompt.16x.engineer · fetched 23 Oct 2026 · Vendor trademark, used only to identify the product; removed on request
• Cover: none collected yet, so a generated tile is shown.

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